Click
to
hide
Water-Year
Summary
instructions
and
information
- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
01659000 NORTH BRANCH CHOPAWAMSIC CREEK NEAR INDEPENDENT HILL, VA
LOCATION - Lat 38°33'54", long 77°25'34" referenced to North American Datum of 1927, Prince William County, VA, Hydrologic Unit 02070011, on left bank, 10 feet downstream from Highway MCB-1, 1.0 mi upstream from Chopawamsic Creek, and 4.8 mi south of Independent Hill.
DRAINAGE AREA - 5.69 mi².
REVISIONS HISTORY - OFR 2006-1308: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - May 1951 to June 1957, October 1989 to September 1990 (annual maximum only), March 2000 to December 2003, January 2007 to October 2011.
GAGE - Water-stage recorder. Datum of gage is 230 ft NGVD of 1929, from topographic map. May 1951 to June 1957, at site 1,000 ft upstream at different datum.
REMARKS - Records good except for period Sept. 12-30, 2011, which is fair, and those for estimated daily discharges, which are poor.
WATER-QUALITY RECORDS
PERIOD OF RECORD - January 2000 to January 2004, February 2007 to October 2011.
PERIOD OF DAILY RECORD - SUSPENDED SEDIMENT DISCHARGE: March 2000 to December 2003, February 2007 to September 2011.
EXTREMES FOR PERIOD OF DAILY RECORD - SUSPENDED SEDIMENT DISCHARGE: Maximum calculated, 233 tons/day, Mar. 21, 2001; minimum calculated, 0.0 tons/day, many days.
